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/*
* Copyright (c) 2016-2018 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* 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.
*/
#include "helpers.h"
/** Fill N pixel of the padding edge of a single channel image by replicating the closest valid pixel.
*
* @attention The DATA_TYPE needs to be passed at the compile time.
* e.g. -DDATA_TYPE=int
*
* @attention The border size for top, bottom, left, right needs to be passed at the compile time.
* e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2
*
* @param[in,out] buf_ptr Pointer to the source image. Supported data types: U8/U16/S16/U32/S32/F16/F32
* @param[in] buf_stride_x Stride of the source image in X dimension (in bytes)
* @param[in] buf_step_x buf_stride_x * number of elements along X processed per workitem(in bytes)
* @param[in] buf_stride_y Stride of the source image in Y dimension (in bytes)
* @param[in] buf_step_y buf_stride_y * number of elements along Y processed per workitem(in bytes)
* @param[in] buf_stride_z Stride between images if batching images (in bytes)
* @param[in] buf_step_z buf_stride_z * number of elements along Z processed per workitem(in bytes)
* @param[in] buf_offset_first_element_in_bytes The offset of the first element in the source image
* @param[in] width Width of the valid region of the image
* @param[in] height Height of the valid region of the image
* @param[in] start_pos XY coordinate indicating the start point of the valid region
*/
__kernel void fill_image_borders_replicate(
TENSOR3D_DECLARATION(buf),
uint width,
uint height,
int2 start_pos)
{
Image buf = CONVERT_TENSOR3D_TO_IMAGE_STRUCT_NO_STEP(buf);
// Update pointer to point to the starting point of the valid region
buf.ptr += start_pos.y * buf.stride_y + start_pos.x * buf.stride_x;
const int total_width = BORDER_SIZE_LEFT + width + BORDER_SIZE_RIGHT;
const int gid0 = get_global_id(0);
const int gidH = gid0 - total_width;
const int gidW = gid0 - BORDER_SIZE_LEFT;
if(gidH >= 0)
{
// Handle left border
DATA_TYPE left_val = *(__global DATA_TYPE *)offset(&buf, 0, gidH);
for(int i = -BORDER_SIZE_LEFT; i < 0; ++i)
{
*(__global DATA_TYPE *)offset(&buf, i, gidH) = left_val;
}
// Handle right border
DATA_TYPE right_val = *(__global DATA_TYPE *)offset(&buf, width - 1, gidH);
for(int i = 0; i < BORDER_SIZE_RIGHT; ++i)
{
*(__global DATA_TYPE *)offset(&buf, width + i, gidH) = right_val;
}
}
else
{
// Get value for corners
int val_idx = gidW;
if(gidW < 0 || gidW > (width - 1))
{
val_idx = gidW < 0 ? 0 : width - 1;
}
// Handle top border
DATA_TYPE top_val = *(__global DATA_TYPE *)offset(&buf, val_idx, 0);
for(int i = -BORDER_SIZE_TOP; i < 0; ++i)
{
*(__global DATA_TYPE *)offset(&buf, gidW, i) = top_val;
}
// Handle bottom border
DATA_TYPE bottom_val = *(__global DATA_TYPE *)offset(&buf, val_idx, height - 1);
for(int i = 0; i < BORDER_SIZE_BOTTOM; ++i)
{
*(__global DATA_TYPE *)offset(&buf, gidW, height + i) = bottom_val;
}
}
}
/** Fill N pixels of the padding edge of a single channel image with a constant value.
*
* @attention The DATA_TYPE needs to be passed at the compile time.
* e.g. -DDATA_TYPE=int
*
* @attention The border size for top, bottom, left, right needs to be passed at the compile time.
* e.g. --DBORDER_SIZE_TOP=0 -DBORDER_SIZE_BOTTOM=2 -DBORDER_SIZE_LEFT=0 -DBORDER_SIZE_RIGHT=2
*
* @param[out] buf_ptr Pointer to the source image. Supported data types: U8/U16/S16/U32/S32/F16/F32
* @param[in] buf_stride_x Stride of the source image in X dimension (in bytes)
* @param[in] buf_step_x buf_stride_x * number of elements along X processed per workitem(in bytes)
* @param[in] buf_stride_y Stride of the source image in Y dimension (in bytes)
* @param[in] buf_step_y buf_stride_y * number of elements along Y processed per workitem(in bytes)
* @param[in] buf_stride_z Stride between images if batching images (in bytes)
* @param[in] buf_step_z buf_stride_z * number of elements along Z processed per workitem(in bytes)
* @param[in] buf_offset_first_element_in_bytes The offset of the first element in the source image
* @param[in] width Width of the valid region of the image
* @param[in] height Height of the valid region of the image
* @param[in] start_pos XY coordinate indicating the start point of the valid region
* @param[in] constant_value Constant value to use to fill the edges
*/
__kernel void fill_image_borders_constant(
TENSOR3D_DECLARATION(buf),
uint width,
uint height,
int2 start_pos,
DATA_TYPE constant_value)
{
Image buf = CONVERT_TENSOR3D_TO_IMAGE_STRUCT_NO_STEP(buf);
// Update pointer to point to the starting point of the valid region
buf.ptr += start_pos.y * buf.stride_y + start_pos.x * buf.stride_x;
const int total_width = BORDER_SIZE_LEFT + width + BORDER_SIZE_RIGHT;
const int gid0 = get_global_id(0);
const int gidH = gid0 - total_width;
const int gidW = gid0 - BORDER_SIZE_LEFT;
if(gidH >= 0)
{
// Handle left border
for(int i = -BORDER_SIZE_LEFT; i < 0; ++i)
{
*(__global DATA_TYPE *)offset(&buf, i, gidH) = constant_value;
}
// Handle right border
for(int i = 0; i < BORDER_SIZE_RIGHT; ++i)
{
*(__global DATA_TYPE *)offset(&buf, width + i, gidH) = constant_value;
}
}
else
{
// Handle top border
for(int i = -BORDER_SIZE_TOP; i < 0; ++i)
{
*(__global DATA_TYPE *)offset(&buf, gidW, i) = constant_value;
}
// Handle bottom border
for(int i = 0; i < BORDER_SIZE_BOTTOM; ++i)
{
*(__global DATA_TYPE *)offset(&buf, gidW, height + i) = constant_value;
}
}
}
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