| /* |
| * Copyright (c) 2016, 2017 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" |
| |
| /** This function accumulates an input image into output image. |
| * |
| * @param[in] input_ptr Pointer to the source image. Supported data types: U8 |
| * @param[in] input_stride_x Stride of the source image in X dimension (in bytes) |
| * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes) |
| * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image |
| * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16 |
| * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes) |
| * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes) |
| * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image |
| */ |
| __kernel void accumulate( |
| IMAGE_DECLARATION(input), |
| IMAGE_DECLARATION(accu)) |
| { |
| // Get pixels pointer |
| Image input = CONVERT_TO_IMAGE_STRUCT(input); |
| Image accu = CONVERT_TO_IMAGE_STRUCT(accu); |
| |
| // Load data |
| uchar16 in_data = vload16(0, input.ptr); |
| short16 accu_data = vload16(0, (__global short *)accu.ptr); |
| |
| // Perform accumulation |
| short16 res = add_sat(convert_short16(in_data), accu_data); |
| |
| // Store result |
| vstore16(res, 0, (__global short *)accu.ptr); |
| } |
| |
| /** This function accumulates a weighted value from an input image to an output image. |
| * |
| * @param[in] input_ptr Pointer to the source image. Supported data types: U8 |
| * @param[in] input_stride_x Stride of the source image in X dimension (in bytes) |
| * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes) |
| * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image |
| * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16 |
| * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes) |
| * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes) |
| * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image |
| * @param[in] alpha The float scalar value with a value in the range of 0 to 1 |
| */ |
| __kernel void accumulate_weighted( |
| IMAGE_DECLARATION(input), |
| IMAGE_DECLARATION(accu), |
| const float alpha) |
| { |
| // Get pixels pointer |
| Image input = CONVERT_TO_IMAGE_STRUCT(input); |
| Image accu = CONVERT_TO_IMAGE_STRUCT(accu); |
| |
| // Load data |
| const float16 in_data = convert_float16(vload16(0, input.ptr)); |
| const float16 accu_data = convert_float16(vload16(0, accu.ptr)); |
| |
| // Calculate weighted accumulation |
| const uchar16 res = convert_uchar16((1.0f - alpha) * accu_data + alpha * in_data); |
| |
| // Store result |
| vstore16(res, 0, accu.ptr); |
| } |
| |
| /** This function accumulates a squared value from an input image to an output image. |
| * |
| * @param[in] input_ptr Pointer to the source image. Supported data types: U8 |
| * @param[in] input_stride_x Stride of the source image in X dimension (in bytes) |
| * @param[in] input_step_x input_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] input_stride_y Stride of the source image in Y dimension (in bytes) |
| * @param[in] input_step_y input_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] input_offset_first_element_in_bytes The offset of the first element in the source image |
| * @param[out] accu_ptr Pointer to the destination image. Supported data types: S16 |
| * @param[in] accu_stride_x Stride of the destination image in X dimension (in bytes) |
| * @param[in] accu_step_x accu_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] accu_stride_y Stride of the destination image in Y dimension (in bytes) |
| * @param[in] accu_step_y accu_stride_y * number of elements along Y processed per workitem(in bytes) |
| * @param[in] accu_offset_first_element_in_bytes The offset of the first element in the destination image |
| * @param[in] shift The U32 scalar value with a value in the range of 0 to 15 |
| */ |
| __kernel void accumulate_squared( |
| IMAGE_DECLARATION(input), |
| IMAGE_DECLARATION(accu), |
| const uint shift) |
| { |
| // Get pixels pointer |
| Image input = CONVERT_TO_IMAGE_STRUCT(input); |
| Image accu = CONVERT_TO_IMAGE_STRUCT(accu); |
| |
| // Load data |
| ushort16 in_data = convert_ushort16(vload16(0, input.ptr)); |
| uint16 accu_data = convert_uint16(vload16(0, (__global short *)accu.ptr)); |
| |
| // Calculate squared accumulation |
| short16 res = convert_short16_sat(accu_data + convert_uint16((in_data * in_data) >> shift)); |
| |
| // Store result |
| vstore16(res, 0, (__global short *)accu.ptr); |
| } |