Michael Tyler | 8deee9b | 2023-06-30 11:26:05 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2023 Arm Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #include <premultiply.hpp> |
| 26 | |
| 27 | #define CHANNEL_MULTIPLIER 6 |
| 28 | #define BLOCK_SIZE 4 |
| 29 | |
| 30 | void do_premultiply_float_6(const float *in_ptr, |
| 31 | const unsigned int ld_row, |
| 32 | const unsigned int ld_col, |
| 33 | float *out_ptr, |
| 34 | const unsigned int out_ld_row, |
| 35 | const unsigned int out_ld_col, |
| 36 | const unsigned int tile_rows, |
| 37 | const unsigned int tile_cols, |
| 38 | const unsigned input_channels) |
| 39 | { |
| 40 | for(unsigned int i = 0; i < tile_rows; i++) |
| 41 | { |
| 42 | const float *ip2 = in_ptr + i * ld_row; |
| 43 | float *op2 = out_ptr + i * out_ld_row; |
| 44 | for(unsigned int j = 0; j < tile_cols; j++) |
| 45 | { |
| 46 | const float *ip = ip2; |
| 47 | float *op = op2; |
Michael Tyler | 4c30de0 | 2023-07-07 12:01:32 +0100 | [diff] [blame] | 48 | |
| 49 | unsigned int num_blocks = input_channels / BLOCK_SIZE; |
| 50 | for(unsigned int c = 0; c < num_blocks; c++) |
Michael Tyler | 8deee9b | 2023-06-30 11:26:05 +0100 | [diff] [blame] | 51 | { |
| 52 | float vals[BLOCK_SIZE]; |
| 53 | for(unsigned int v = 0; v < BLOCK_SIZE; v++) |
| 54 | { |
| 55 | vals[v] = ip[v]; |
| 56 | } |
| 57 | ip += BLOCK_SIZE; |
| 58 | |
| 59 | for(unsigned int v = 0; v < BLOCK_SIZE; v++) |
| 60 | { |
| 61 | for(unsigned int r = 0; r < CHANNEL_MULTIPLIER; r++) |
| 62 | { |
| 63 | op[r] = vals[v]; |
| 64 | } |
| 65 | op += CHANNEL_MULTIPLIER; |
| 66 | } |
| 67 | } |
Michael Tyler | 4c30de0 | 2023-07-07 12:01:32 +0100 | [diff] [blame] | 68 | |
| 69 | unsigned int rem = input_channels - num_blocks * BLOCK_SIZE; |
| 70 | for(unsigned int c = 0; c < rem; c++) |
| 71 | { |
| 72 | float val = ip[c]; |
| 73 | for(unsigned int r = 0; r < CHANNEL_MULTIPLIER; r++) |
| 74 | { |
| 75 | op[r] = val; |
| 76 | } |
| 77 | op += CHANNEL_MULTIPLIER; |
| 78 | } |
| 79 | |
Michael Tyler | 8deee9b | 2023-06-30 11:26:05 +0100 | [diff] [blame] | 80 | ip2 += ld_col; |
| 81 | op2 += out_ld_col; |
| 82 | } |
| 83 | } |
| 84 | } |