Program Listing for File xf_canny_sobel.hpp
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/*
* Copyright 2019 Xilinx, Inc.
*
* 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 "../common/xf_common.hpp"
#include "../common/xf_utility.hpp"
template <int NPC, int DEPTH_SRC, int DEPTH_DST, int WIN_SZ, int WIN_SZ_SQ>
void xFSobelProcx5x5(XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)],
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)],
ap_uint<8> win_size) {
// clang-format off
#pragma HLS INLINE
// clang-format on
XF_PTNAME(DEPTH_DST) g_x = 0;
XF_PTNAME(DEPTH_DST) M00 = (XF_PTNAME(DEPTH_DST))(src_buf[0][1] + src_buf[4][1]) << 1;
XF_PTNAME(DEPTH_DST) M01 = (XF_PTNAME(DEPTH_DST))(src_buf[0][4] + src_buf[4][4]) - (src_buf[0][0] + src_buf[4][0]);
XF_PTNAME(DEPTH_DST) A00 = (XF_PTNAME(DEPTH_DST))(src_buf[0][3] + src_buf[4][3]) << 1;
XF_PTNAME(DEPTH_DST) M02 = (XF_PTNAME(DEPTH_DST))(src_buf[1][0] + src_buf[3][0]) << 2;
XF_PTNAME(DEPTH_DST) M03 = (XF_PTNAME(DEPTH_DST))(src_buf[1][1] + src_buf[3][1]) << 3;
XF_PTNAME(DEPTH_DST) A01 = (XF_PTNAME(DEPTH_DST))(src_buf[1][3] + src_buf[3][3]) << 3;
XF_PTNAME(DEPTH_DST) A02 = (XF_PTNAME(DEPTH_DST))(src_buf[1][4] + src_buf[3][4]) << 2;
XF_PTNAME(DEPTH_DST) M04 = src_buf[2][0] * 6;
XF_PTNAME(DEPTH_DST) M05 = src_buf[2][1] * 12;
XF_PTNAME(DEPTH_DST) A03 = src_buf[2][3] * 12;
XF_PTNAME(DEPTH_DST) A04 = src_buf[2][4] * 6;
XF_PTNAME(DEPTH_DST) S00 = M00 + M02;
XF_PTNAME(DEPTH_DST) S01 = M03 + M04 + M05;
XF_PTNAME(DEPTH_DST) A0 = A00 + A01;
XF_PTNAME(DEPTH_DST) A1 = A02 + A03;
XF_PTNAME(DEPTH_DST) A2 = A04 + M01;
XF_PTNAME(DEPTH_DST) FA = A0 + A1 + A2;
XF_PTNAME(DEPTH_DST) FS = S00 + S01;
g_x = FA - FS;
OutputValues[0] = g_x;
return;
}
template <int NPC, int DEPTH_SRC, int DEPTH_DST, int WIN_SZ, int WIN_SZ_SQ>
void xFSobelProcy5x5(XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)],
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)],
ap_uint<8> win_size) {
// clang-format off
#pragma HLS INLINE
// clang-format on
XF_PTNAME(DEPTH_DST) g_y = 0;
XF_PTNAME(DEPTH_DST) M00 = (src_buf[4][0] + src_buf[4][4]) - (src_buf[0][0] + src_buf[0][4]);
XF_PTNAME(DEPTH_DST) M01 = (XF_PTNAME(DEPTH_DST))(src_buf[0][1] + src_buf[0][3]) << 2;
XF_PTNAME(DEPTH_DST) A00 = (XF_PTNAME(DEPTH_DST))(src_buf[4][1] + src_buf[4][3]) << 2;
XF_PTNAME(DEPTH_DST) M02 = (XF_PTNAME(DEPTH_DST))(src_buf[1][0] + src_buf[1][4]) << 1;
XF_PTNAME(DEPTH_DST) A01 = (XF_PTNAME(DEPTH_DST))(src_buf[3][0] + src_buf[3][4]) << 1;
XF_PTNAME(DEPTH_DST) M03 = (XF_PTNAME(DEPTH_DST))(src_buf[1][1] + src_buf[1][3]) << 3;
XF_PTNAME(DEPTH_DST) A02 = (XF_PTNAME(DEPTH_DST))(src_buf[3][1] + src_buf[3][3]) << 3;
XF_PTNAME(DEPTH_DST) M04 = src_buf[0][2] * 6;
XF_PTNAME(DEPTH_DST) M05 = src_buf[1][2] * 12;
XF_PTNAME(DEPTH_DST) A03 = src_buf[3][2] * 12;
XF_PTNAME(DEPTH_DST) A04 = src_buf[4][2] * 6;
XF_PTNAME(DEPTH_DST) S00 = M01 + M02 + M03;
XF_PTNAME(DEPTH_DST) S01 = M04 + M05;
XF_PTNAME(DEPTH_DST) A0 = A00 + A01;
XF_PTNAME(DEPTH_DST) A1 = A02 + A03;
XF_PTNAME(DEPTH_DST) A2 = A04 + M00;
XF_PTNAME(DEPTH_DST) FA = A0 + A1 + A2;
XF_PTNAME(DEPTH_DST) FS = S00 + S01;
g_y = FA - FS;
OutputValues[0] = g_y;
return;
}
template <int NPC, int DEPTH_SRC, int DEPTH_DST, int WIN_SZ, int WIN_SZ_SQ>
void xFSobelProcx(XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)],
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)],
ap_uint<8> win_size) {
// clang-format off
#pragma HLS INLINE
// clang-format on
XF_PTNAME(DEPTH_SRC) array[WIN_SZ_SQ];
// clang-format off
#pragma HLS ARRAY_PARTITION variable=array complete dim=1
// clang-format on
XF_PTNAME(DEPTH_DST) g_x = 0;
XF_PTNAME(DEPTH_DST) M00 = ((XF_PTNAME(DEPTH_DST))src_buf[1][0] << 1);
XF_PTNAME(DEPTH_DST) M01 = ((XF_PTNAME(DEPTH_DST))src_buf[1][2] << 1);
XF_PTNAME(DEPTH_DST) A00 = (src_buf[0][2] + src_buf[2][2]);
XF_PTNAME(DEPTH_DST) S00 = (src_buf[0][0] + src_buf[2][0]);
g_x = M01 - M00;
g_x = g_x + A00;
g_x = g_x - S00;
OutputValues[0] = g_x;
return;
}
template <int NPC, int DEPTH_SRC, int DEPTH_DST, int WIN_SZ, int WIN_SZ_SQ>
void xFSobelProcy(XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)],
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)],
ap_uint<8> win_size) {
// clang-format off
#pragma HLS INLINE
// clang-format on
XF_PTNAME(DEPTH_DST) g_y = 0;
XF_PTNAME(DEPTH_DST) M00, M01;
XF_PTNAME(DEPTH_DST) A00, S00;
M00 = ((XF_PTNAME(DEPTH_DST))src_buf[0][1] << 1);
M01 = ((XF_PTNAME(DEPTH_DST))src_buf[2][1] << 1);
A00 = (src_buf[2][0] + src_buf[2][2]); //(b0 + b2);
S00 = (src_buf[0][0] + src_buf[0][2]); //(t0 + t2);
g_y = (M01 - M00);
g_y = (g_y + A00);
g_y = (g_y - S00);
OutputValues[0] = g_y;
return;
}
template <int SRC_T,
int DST_T,
int ROWS,
int COLS,
int DEPTH_SRC,
int DEPTH_DST,
int NPC,
int WORDWIDTH_SRC,
int WORDWIDTH_DST,
int TC,
int WIN_SZ,
int WIN_SZ_SQ>
void ProcessSobelfunc(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& _src_mat, // hls::stream< XF_SNAME(WORDWIDTH_SRC) > &_src,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _out_mat, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _out_mat1, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst1,
XF_SNAME(WORDWIDTH_SRC) buf[WIN_SZ][(COLS >> XF_BITSHIFT(NPC))],
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)],
XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)],
XF_PTNAME(DEPTH_DST) OutputValues1[XF_NPIXPERCYCLE(NPC)],
XF_SNAME(WORDWIDTH_DST) & P0,
XF_SNAME(WORDWIDTH_DST) & P1,
uint16_t img_width,
uint16_t img_height,
uint16_t& shift_x,
ap_uint<13> row_ind[WIN_SZ],
ap_uint<13> row,
ap_uint<8> win_size,
int& readind,
int& writeind,
int& writeind1) {
// clang-format off
#pragma HLS INLINE
// clang-format on
XF_SNAME(WORDWIDTH_SRC) buf_cop[WIN_SZ];
// clang-format off
#pragma HLS ARRAY_PARTITION variable=buf_cop complete dim=1
// clang-format on
uint16_t npc = XF_NPIXPERCYCLE(NPC);
uint16_t col_loop_var = 0;
if (npc == 1) {
col_loop_var = (WIN_SZ >> 1);
} else {
col_loop_var = 1;
}
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS unroll
// clang-format on
for (int ext_copy = 0; ext_copy < npc + WIN_SZ - 1; ext_copy++) {
// clang-format off
#pragma HLS unroll
// clang-format on
src_buf[extract_px][ext_copy] = 0;
}
}
Col_Loop:
for (ap_uint<13> col = 0; col < ((img_width) >> XF_BITSHIFT(NPC)) + col_loop_var; col++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=TC max=TC
#pragma HLS pipeline
#pragma HLS LOOP_FLATTEN OFF
// clang-format on
if (row < img_height && col < (img_width >> XF_BITSHIFT(NPC)))
buf[row_ind[win_size - 1]][col] = _src_mat.read(readind++); // Read data
if (NPC == XF_NPPC8) {
for (int copy_buf_var = 0; copy_buf_var < WIN_SZ; copy_buf_var++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS UNROLL
// clang-format on
if ((row > (img_height - 1)) && (copy_buf_var > (win_size - 1 - (row - (img_height - 1))))) {
buf_cop[copy_buf_var] = buf[(row_ind[win_size - 1 - (row - (img_height - 1))])][col];
} else {
if (col < (img_width >> XF_BITSHIFT(NPC)))
buf_cop[copy_buf_var] = buf[(row_ind[copy_buf_var])][col];
}
}
XF_PTNAME(DEPTH_SRC) src_buf_temp_copy[WIN_SZ][XF_NPIXPERCYCLE(NPC)];
XF_PTNAME(DEPTH_SRC) src_buf_temp_copy_extract[XF_NPIXPERCYCLE(NPC)];
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS unroll
// clang-format on
XF_SNAME(WORDWIDTH_SRC) toextract = buf_cop[extract_px];
xfExtractPixels<NPC, WORDWIDTH_SRC, DEPTH_SRC>(src_buf_temp_copy_extract, toextract, 0);
for (int ext_copy = 0; ext_copy < npc; ext_copy++) {
// clang-format off
#pragma HLS unroll
// clang-format on
src_buf_temp_copy[extract_px][ext_copy] = src_buf_temp_copy_extract[ext_copy];
}
}
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (int col_warp = 0; col_warp < (WIN_SZ >> 1); col_warp++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
if (col == img_width >> XF_BITSHIFT(NPC)) {
src_buf[extract_px][col_warp + npc + (WIN_SZ >> 1)] =
src_buf[extract_px][npc + (WIN_SZ >> 1) - 1];
} else {
src_buf[extract_px][col_warp + npc + (WIN_SZ >> 1)] = src_buf_temp_copy[extract_px][col_warp];
}
}
}
if (col == 0) {
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (int col_warp = 0; col_warp < npc + (WIN_SZ >> 1); col_warp++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
src_buf[extract_px][col_warp] = src_buf_temp_copy[extract_px][0];
}
}
}
XF_PTNAME(DEPTH_SRC) src_buf_temp_med_apply[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)];
for (int applySobel = 0; applySobel < npc; applySobel++) {
// clang-format off
#pragma HLS UNROLL
// clang-format on
for (int copyi = 0; copyi < WIN_SZ; copyi++) {
for (int copyj = 0; copyj < WIN_SZ; copyj++) {
src_buf_temp_med_apply[copyi][copyj] = src_buf[copyi][copyj + applySobel];
}
}
XF_PTNAME(DEPTH_DST) OutputValues_percycle[XF_NPIXPERCYCLE(NPC)];
XF_PTNAME(DEPTH_DST) OutputValues_percycle1[XF_NPIXPERCYCLE(NPC)];
if (WIN_SZ == 3) {
xFSobelProcx<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues_percycle,
src_buf_temp_med_apply, WIN_SZ);
xFSobelProcy<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues_percycle1,
src_buf_temp_med_apply, WIN_SZ);
}
if (WIN_SZ == 5) {
xFSobelProcx5x5<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues_percycle,
src_buf_temp_med_apply, WIN_SZ);
xFSobelProcy5x5<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues_percycle1,
src_buf_temp_med_apply, WIN_SZ);
}
OutputValues[applySobel] = OutputValues_percycle[0];
OutputValues1[applySobel] = OutputValues_percycle1[0];
}
if (col >= 1) {
shift_x = 0;
P0 = 0;
xfPackPixels<NPC, WORDWIDTH_DST, DEPTH_DST>(OutputValues, P0, 0, npc, shift_x);
shift_x = 0;
P1 = 0;
xfPackPixels<NPC, WORDWIDTH_DST, DEPTH_DST>(OutputValues1, P1, 0, npc, shift_x);
_out_mat.write(writeind++, P0);
_out_mat1.write(writeind1++, P1);
}
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (int col_warp = 0; col_warp < (WIN_SZ >> 1); col_warp++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
src_buf[extract_px][col_warp] = src_buf[extract_px][col_warp + npc];
}
}
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (int col_warp = 0; col_warp < npc; col_warp++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
src_buf[extract_px][col_warp + (WIN_SZ >> 1)] = src_buf_temp_copy[extract_px][col_warp];
}
}
} else {
for (int copy_buf_var = 0; copy_buf_var < WIN_SZ; copy_buf_var++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS UNROLL
// clang-format on
if ((row > (img_height - 1)) && (copy_buf_var > (win_size - 1 - (row - (img_height - 1))))) {
buf_cop[copy_buf_var] = buf[(row_ind[win_size - 1 - (row - (img_height - 1))])][col];
} else {
buf_cop[copy_buf_var] = buf[(row_ind[copy_buf_var])][col];
}
}
for (int extract_px = 0; extract_px < WIN_SZ; extract_px++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS UNROLL
// clang-format on
if (col < img_width) {
src_buf[extract_px][win_size - 1] = buf_cop[extract_px];
} else {
src_buf[extract_px][win_size - 1] = src_buf[extract_px][win_size - 2];
}
}
if (WIN_SZ == 3) {
xFSobelProcx<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues, src_buf, win_size);
xFSobelProcy<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues1, src_buf, win_size);
}
if (WIN_SZ == 5) {
xFSobelProcx5x5<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues, src_buf, win_size);
xFSobelProcy5x5<NPC, DEPTH_SRC, DEPTH_DST, WIN_SZ, WIN_SZ_SQ>(OutputValues1, src_buf, win_size);
}
if (col >= (WIN_SZ >> 1)) {
_out_mat.write(writeind++, OutputValues[0]);
_out_mat1.write(writeind1++, OutputValues1[0]);
}
for (int wrap_buf = 0; wrap_buf < WIN_SZ; wrap_buf++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (int col_warp = 0; col_warp < WIN_SZ - 1; col_warp++) {
// clang-format off
#pragma HLS UNROLL
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
if (col == 0) {
src_buf[wrap_buf][col_warp] = src_buf[wrap_buf][win_size - 1];
} else {
src_buf[wrap_buf][col_warp] = src_buf[wrap_buf][col_warp + 1];
}
}
}
}
} // Col_Loop
}
template <int SRC_T,
int DST_T,
int ROWS,
int COLS,
int DEPTH_SRC,
int DEPTH_DST,
int NPC,
int WORDWIDTH_SRC,
int WORDWIDTH_DST,
int TC,
int WIN_SZ,
int WIN_SZ_SQ,
bool USE_URAM>
void xFSobel3x3(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& _src_mat, // hls::stream< XF_SNAME(WORDWIDTH_SRC) > &_src,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _out_mat, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _out_mat1, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst1,
ap_uint<8> win_size,
uint16_t img_height,
uint16_t img_width) {
ap_uint<13> row_ind[WIN_SZ];
// clang-format off
#pragma HLS ARRAY_PARTITION variable=row_ind complete dim=1
// clang-format on
int readind = 0, writeind = 0, writeind1 = 0;
uint16_t shift_x = 0;
ap_uint<13> row, col;
XF_PTNAME(DEPTH_DST) OutputValues[XF_NPIXPERCYCLE(NPC)];
XF_PTNAME(DEPTH_DST) OutputValues1[XF_NPIXPERCYCLE(NPC)];
// clang-format off
#pragma HLS ARRAY_PARTITION variable=OutputValues complete dim=1
#pragma HLS ARRAY_PARTITION variable=OutputValues1 complete dim=1
// clang-format on
XF_PTNAME(DEPTH_SRC) src_buf[WIN_SZ][XF_NPIXPERCYCLE(NPC) + (WIN_SZ - 1)];
// clang-format off
#pragma HLS ARRAY_PARTITION variable=src_buf complete dim=1
#pragma HLS ARRAY_PARTITION variable=src_buf complete dim=2
// clang-format on
// src_buf1 et al merged
XF_SNAME(WORDWIDTH_DST) P0;
XF_SNAME(WORDWIDTH_DST) P1;
XF_SNAME(WORDWIDTH_SRC) buf[WIN_SZ][(COLS >> XF_BITSHIFT(NPC))];
if (USE_URAM) {
// clang-format off
#pragma HLS array reshape variable=buf dim=1 factor=WIN_SZ cyclic
#pragma HLS RESOURCE variable=buf core=RAM_S2P_URAM
// clang-format on
} else {
// clang-format off
#pragma HLS RESOURCE variable=buf core=RAM_S2P_BRAM
#pragma HLS ARRAY_PARTITION variable=buf complete dim=1
// clang-format on
}
// initializing row index
for (int init_row_ind = 0; init_row_ind < win_size; init_row_ind++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
row_ind[init_row_ind] = init_row_ind;
}
read_lines:
for (int init_buf = row_ind[win_size >> 1]; init_buf < row_ind[win_size - 1]; init_buf++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
// clang-format on
for (col = 0; col<img_width>> XF_BITSHIFT(NPC); col++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=TC max=TC
#pragma HLS pipeline
#pragma HLS LOOP_FLATTEN OFF
// clang-format on
buf[init_buf][col] = _src_mat.read(readind++);
}
}
// takes care of top borders
for (col = 0; col<img_width>> XF_BITSHIFT(NPC); col++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=TC max=TC
// clang-format on
for (int init_buf = 0; init_buf<WIN_SZ>> 1; init_buf++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS UNROLL
// clang-format on
buf[init_buf][col] = buf[row_ind[win_size >> 1]][col];
}
}
Row_Loop:
for (row = (win_size >> 1); row < img_height + (win_size >> 1); row++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=ROWS max=ROWS
// clang-format on
P0 = 0;
P1 = 0;
ProcessSobelfunc<SRC_T, DST_T, ROWS, COLS, DEPTH_SRC, DEPTH_DST, NPC, WORDWIDTH_SRC, WORDWIDTH_DST, TC, WIN_SZ,
WIN_SZ_SQ>(_src_mat, _out_mat, _out_mat1, buf, src_buf, OutputValues, OutputValues1, P0, P1,
img_width, img_height, shift_x, row_ind, row, win_size, readind, writeind,
writeind1);
// update indices
ap_uint<13> zero_ind = row_ind[0];
for (int init_row_ind = 0; init_row_ind < WIN_SZ - 1; init_row_ind++) {
// clang-format off
#pragma HLS LOOP_TRIPCOUNT min=WIN_SZ max=WIN_SZ
#pragma HLS UNROLL
// clang-format on
row_ind[init_row_ind] = row_ind[init_row_ind + 1];
}
row_ind[win_size - 1] = zero_ind;
} // Row_Loop
}
template <int SRC_T,
int DST_T,
int ROWS,
int COLS,
int DEPTH_SRC,
int DEPTH_DST,
int NPC,
int WORDWIDTH_SRC,
int WORDWIDTH_DST,
int WIN_SZ,
bool USE_URAM = false>
void xFSobel(xf::cv::Mat<SRC_T, ROWS, COLS, NPC>& _src, // hls::stream< XF_SNAME(WORDWIDTH_SRC) > &_src,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _dst, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst,
xf::cv::Mat<DST_T, ROWS, COLS, NPC>& _dst1, // hls::stream< XF_SNAME(WORDWIDTH_DST) > &_dst1,
int _border_type,
uint16_t imgheight,
uint16_t imgwidth) {
#ifndef __SYNTHESIS__
assert(((imgheight <= ROWS) && (imgwidth <= COLS)) && "ROWS and COLS should be greater than input image");
#endif
xFSobel3x3<SRC_T, DST_T, ROWS, COLS, DEPTH_SRC, DEPTH_DST, NPC, WORDWIDTH_SRC, WORDWIDTH_DST,
(COLS >> XF_BITSHIFT(NPC)) + (WIN_SZ >> 1), WIN_SZ, WIN_SZ * WIN_SZ, USE_URAM>(_src, _dst, _dst1, WIN_SZ,
imgheight, imgwidth);
}