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2026-07-13 12:40:42 +08:00

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// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "paddle/phi/kernels/pad3d_kernel.h"
#include "paddle/phi/backends/cpu/cpu_context.h"
#include "paddle/phi/core/kernel_registry.h"
#include "paddle/phi/kernels/full_kernel.h"
namespace phi {
template <typename T>
void ConstPad3DFuncNCDHW(const T* in_data,
T* out_data,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value) {
int in_d = out_d - pad_front;
int in_h = out_h - pad_top;
int in_w = out_w - pad_left;
out_data[out_d * out_height * out_width + out_h * out_width + out_w] =
(in_d < 0 || in_h < 0 || in_w < 0 || in_d >= in_depth ||
in_h >= in_height || in_w >= in_width)
? value
: in_data[in_d * in_height * in_width + in_h * in_width + in_w];
}
template <typename T>
void ConstPad3DFuncNDHWC(const T* in_data,
T* out_data,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value) {
int in_d = out_d - pad_front;
int in_h = out_h - pad_top;
int in_w = out_w - pad_left;
const int out_index =
(out_d * out_height * out_width + out_h * out_width + out_w) * channels;
if (in_d < 0 || in_h < 0 || in_w < 0 || in_d >= in_depth ||
in_h >= in_height || in_w >= in_width) {
for (int c = 0; c < channels; ++c) {
out_data[out_index + c] = value;
}
} else {
const int in_index =
(in_d * in_height * in_width + in_h * in_width + in_w) * channels;
for (int c = 0; c < channels; ++c) {
out_data[out_index + c] = in_data[in_index + c];
}
}
}
template <typename T>
void ReflectPad3DFuncNCDHW(const T* in_data,
T* out_data,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = out_d - pad_front;
int in_h = out_h - pad_top;
int in_w = out_w - pad_left;
in_d = std::max(in_d, -in_d); // reflect by 0
in_d = std::min(in_d, 2 * in_depth - in_d - 2); // reflect by in_depth
in_h = std::max(in_h, -in_h); // reflect by 0
in_h = std::min(in_h, 2 * in_height - in_h - 2); // reflect by in_height
in_w = std::max(in_w, -in_w); // reflect by 0
in_w = std::min(in_w, 2 * in_width - in_w - 2); // reflect by in_width
out_data[out_d * out_height * out_width + out_h * out_width + out_w] =
in_data[in_d * in_height * in_width + in_h * in_width + in_w];
}
template <typename T>
void ReflectPad3DFuncNDHWC(const T* in_data,
T* out_data,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = out_d - pad_front;
int in_h = out_h - pad_top;
int in_w = out_w - pad_left;
in_d = std::max(in_d, -in_d);
in_d = std::min(in_d, 2 * in_depth - in_d - 2);
in_h = std::max(in_h, -in_h);
in_h = std::min(in_h, 2 * in_height - in_h - 2);
in_w = std::max(in_w, -in_w);
in_w = std::min(in_w, 2 * in_width - in_w - 2);
const int out_index =
(out_d * out_height * out_width + out_h * out_width + out_w) * channels;
const int in_index =
(in_d * in_height * in_width + in_h * in_width + in_w) * channels;
for (int c = 0; c < channels; ++c) {
out_data[out_index + c] = in_data[in_index + c];
}
}
template <typename T>
void ReplicatePad3DFuncNCDHW(const T* in_data,
T* out_data,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = std::min(in_depth - 1, std::max(out_d - pad_front, 0));
int in_h = std::min(in_height - 1, std::max(out_h - pad_top, 0));
int in_w = std::min(in_width - 1, std::max(out_w - pad_left, 0));
out_data[out_d * out_height * out_width + out_h * out_width + out_w] =
in_data[in_d * in_height * in_width + in_h * in_width + in_w];
}
template <typename T>
void ReplicatePad3DFuncNDHWC(const T* in_data,
T* out_data,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = std::min(in_depth - 1, std::max(out_d - pad_front, 0));
int in_h = std::min(in_height - 1, std::max(out_h - pad_top, 0));
int in_w = std::min(in_width - 1, std::max(out_w - pad_left, 0));
const int out_index =
(out_d * out_height * out_width + out_h * out_width + out_w) * channels;
const int in_index =
(in_d * in_height * in_width + in_h * in_width + in_w) * channels;
for (int c = 0; c < channels; ++c) {
out_data[out_index + c] = in_data[in_index + c];
}
}
template <typename T>
void CircularPad3DFuncNCDHW(const T* in_data,
T* out_data,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = ((out_d - pad_front) % in_depth + in_depth) % in_depth;
int in_h = ((out_h - pad_top) % in_height + in_height) % in_height;
int in_w = ((out_w - pad_left) % in_width + in_width) % in_width;
out_data[out_d * out_height * out_width + out_h * out_width + out_w] =
in_data[in_d * in_height * in_width + in_h * in_width + in_w];
}
template <typename T>
void CircularPad3DFuncNDHWC(const T* in_data,
T* out_data,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth UNUSED,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
const int out_d,
const int out_h,
const int out_w,
const T value UNUSED) {
int in_d = ((out_d - pad_front) % in_depth + in_depth) % in_depth;
int in_h = ((out_h - pad_top) % in_height + in_height) % in_height;
int in_w = ((out_w - pad_left) % in_width + in_width) % in_width;
const int out_index =
(out_d * out_height * out_width + out_h * out_width + out_w) * channels;
const int in_index =
(in_d * in_height * in_width + in_h * in_width + in_w) * channels;
for (int c = 0; c < channels; ++c) {
out_data[out_index + c] = in_data[in_index + c];
}
}
template <typename T>
void Pad3DNCDHW(const T* in_data,
const int num,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
T value,
T* out_data,
void (*pad_func)(const T*,
T*,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const T)) {
for (int n = 0; n < num; ++n) {
for (int c = 0; c < channels; ++c) {
for (int out_d = 0; out_d < out_depth; ++out_d) {
for (int out_h = 0; out_h < out_height; ++out_h) {
for (int out_w = 0; out_w < out_width; ++out_w) {
pad_func(in_data,
out_data,
in_depth,
in_height,
in_width,
out_depth,
out_height,
out_width,
pad_front,
pad_top,
pad_left,
out_d,
out_h,
out_w,
value);
}
}
}
in_data += in_depth * in_height * in_width;
out_data += out_depth * out_height * out_width;
}
}
}
template <typename T>
void Pad3DNDHWC(const T* in_data,
const int num,
const int channels,
const int in_depth,
const int in_height,
const int in_width,
const int out_depth,
const int out_height,
const int out_width,
const int pad_front,
const int pad_top,
const int pad_left,
T value,
T* out_data,
void (*pad_func)(const T*,
T*,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const T)) {
for (int n = 0; n < num; ++n) {
for (int out_d = 0; out_d < out_depth; ++out_d) {
for (int out_h = 0; out_h < out_height; ++out_h) {
for (int out_w = 0; out_w < out_width; ++out_w) {
pad_func(in_data,
out_data,
channels,
in_depth,
in_height,
in_width,
out_depth,
out_height,
out_width,
pad_front,
pad_top,
pad_left,
out_d,
out_h,
out_w,
value);
}
}
}
in_data += in_depth * in_height * in_width * channels;
out_data += out_depth * out_height * out_width * channels;
}
}
template <typename T, typename Context>
void Pad3dKernel(const Context& dev_ctx,
const DenseTensor& x,
const IntArray& paddings,
const std::string& mode,
double pad_value,
const std::string& data_format,
DenseTensor* out) {
T value = static_cast<T>(pad_value);
std::vector<int64_t> pads = paddings.GetData();
auto in_dims = x.dims();
const T* in_data = x.data<T>();
if (data_format == "NCDHW") {
out->Resize({in_dims[0],
in_dims[1],
in_dims[2] + pads[4] + pads[5],
in_dims[3] + pads[2] + pads[3],
in_dims[4] + pads[0] + pads[1]});
} else {
out->Resize({in_dims[0],
in_dims[1] + pads[4] + pads[5],
in_dims[2] + pads[2] + pads[3],
in_dims[3] + pads[0] + pads[1],
in_dims[4]});
}
auto out_dims = out->dims();
T* out_data = dev_ctx.template Alloc<T>(out);
if (x.numel() == 0) {
Full<T, Context>(dev_ctx, out->dims(), pad_value, out);
return;
}
int channels = static_cast<int>(in_dims[1]);
int in_depth = static_cast<int>(in_dims[2]);
int in_height = static_cast<int>(in_dims[3]);
int in_width = static_cast<int>(in_dims[4]);
int out_depth = static_cast<int>(out_dims[2]);
int out_height = static_cast<int>(out_dims[3]);
int out_width = static_cast<int>(out_dims[4]);
if (data_format == "NDHWC") {
channels = static_cast<int>(in_dims[4]);
in_depth = static_cast<int>(in_dims[1]);
in_height = static_cast<int>(in_dims[2]);
in_width = static_cast<int>(in_dims[3]);
out_depth = static_cast<int>(out_dims[1]);
out_height = static_cast<int>(out_dims[2]);
out_width = static_cast<int>(out_dims[3]);
}
if (mode == "reflect") {
PADDLE_ENFORCE_GT(
in_depth,
pads[4],
errors::InvalidArgument("The depth of Input(X)'s dimension should be "
"greater than pad_front"
" in reflect mode"
", but received depth(%d) and pad_front(%d).",
in_depth,
pads[4]));
PADDLE_ENFORCE_GT(
in_depth,
pads[5],
errors::InvalidArgument("The depth of Input(X)'s dimension should be "
"greater than pad_back"
" in reflect mode"
", but received depth(%d) and pad_back(%d).",
in_depth,
pads[5]));
PADDLE_ENFORCE_GT(
in_height,
pads[2],
errors::InvalidArgument("The height of Input(X)'s dimension should be "
"greater than pad_top"
" in reflect mode"
", but received depth(%d) and pad_top(%d).",
in_height,
pads[2]));
PADDLE_ENFORCE_GT(
in_height,
pads[3],
errors::InvalidArgument("The height of Input(X)'s dimension should be "
"greater than pad_bottom"
" in reflect mode"
", but received depth(%d) and pad_bottom(%d).",
in_height,
pads[3]));
PADDLE_ENFORCE_GT(
in_width,
pads[0],
errors::InvalidArgument("The width of Input(X)'s dimension should be "
"greater than pad_left"
" in reflect mode"
", but received depth(%d) and pad_left(%d).",
in_width,
pads[0]));
PADDLE_ENFORCE_GT(
in_width,
pads[1],
errors::InvalidArgument("The width of Input(X)'s dimension should be "
"greater than pad_right"
" in reflect mode"
", but received depth(%d) and pad_right(%d).",
in_width,
pads[1]));
} else if (mode == "circular" || mode == "replicate") {
PADDLE_ENFORCE_NE(in_depth * in_height * in_width,
0,
errors::InvalidArgument(
"The input tensor size can not be 0 for circular "
"or replicate padding mode."));
}
const int pad_left = static_cast<int>(pads[0]);
const int pad_top = static_cast<int>(pads[2]);
const int pad_front = static_cast<int>(pads[4]);
const int num = static_cast<int>(in_dims[0]);
if (data_format == "NCDHW") {
std::map<std::string,
void (*)(const T*,
T*,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const T)>
func_map;
func_map["reflect"] = ReflectPad3DFuncNCDHW;
func_map["replicate"] = ReplicatePad3DFuncNCDHW;
func_map["circular"] = CircularPad3DFuncNCDHW;
func_map["constant"] = ConstPad3DFuncNCDHW;
Pad3DNCDHW(in_data,
num,
channels,
in_depth,
in_height,
in_width,
out_depth,
out_height,
out_width,
pad_front,
pad_top,
pad_left,
value,
out_data,
func_map[mode]);
} else {
std::map<std::string,
void (*)(const T*,
T*,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const int,
const T)>
func_map;
func_map["reflect"] = ReflectPad3DFuncNDHWC;
func_map["replicate"] = ReplicatePad3DFuncNDHWC;
func_map["circular"] = CircularPad3DFuncNDHWC;
func_map["constant"] = ConstPad3DFuncNDHWC;
Pad3DNDHWC(in_data,
num,
channels,
in_depth,
in_height,
in_width,
out_depth,
out_height,
out_width,
pad_front,
pad_top,
pad_left,
value,
out_data,
func_map[mode]);
}
}
} // namespace phi
PD_REGISTER_KERNEL(pad3d,
CPU,
ALL_LAYOUT,
phi::Pad3dKernel,
float,
double,
int,
int64_t,
phi::complex64,
phi::complex128) {}