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45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
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// Copyright © 2025 Apple Inc.
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#include "mlx/backend/common/slicing.h"
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#include "mlx/backend/gpu/copy.h"
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#include "mlx/backend/gpu/slicing.h"
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namespace mlx::core {
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void slice_gpu(
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const array& in,
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array& out,
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const Shape& start_indices,
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const Shape& strides,
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const Stream& s) {
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slice(in, out, start_indices, strides);
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}
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void pad_gpu(
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const array& in,
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const array& val,
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array& out,
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const std::vector<int>& axes,
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const Shape& low_pad_size,
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const Stream& s) {
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// Fill output with val
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fill_gpu(val, out, s);
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// Find offset for start of input values
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size_t data_offset = 0;
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for (int i = 0; i < axes.size(); i++) {
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auto ax = axes[i] < 0 ? out.ndim() + axes[i] : axes[i];
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data_offset += out.strides()[ax] * low_pad_size[i];
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}
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// Extract slice from output where input will be pasted
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array out_slice(in.shape(), out.dtype(), nullptr, {});
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out_slice.copy_shared_buffer(
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out, out.strides(), out.flags(), out_slice.size(), data_offset);
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// Copy input values into the slice
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copy_gpu_inplace(in, out_slice, CopyType::GeneralGeneral, s);
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}
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} // namespace mlx::core
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