| /* |
| * Copyright (c) 2021 Stephanos Ioannidis <root@stephanos.io> |
| * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/ztest.h> |
| #include <zephyr/kernel.h> |
| #include <stdlib.h> |
| #include <arm_math.h> |
| #include "../../common/test_common.h" |
| |
| #include "decim_f32.pat" |
| |
| #define SNR_ERROR_THRESH ((float32_t)100) |
| #define REL_ERROR_THRESH (8.0e-4) |
| #define STATE_BUF_LEN (16 + 768 - 1) |
| |
| ZTEST(filtering_decim_f32, test_arm_fir_decimate_f32) |
| { |
| uint32_t decim_factor, tap_count; |
| size_t sample_index, block_size, ref_size; |
| size_t sample_count = ARRAY_SIZE(in_config_decim) / 4; |
| size_t length = ARRAY_SIZE(ref_decim); |
| const uint32_t *config = in_config_decim; |
| const float32_t *input = (const float32_t *)in_val_decim; |
| const float32_t *coeff = (const float32_t *)in_coeff_decim; |
| const float32_t *ref = (const float32_t *)ref_decim; |
| float32_t *state, *output_buf, *output; |
| arm_status status; |
| arm_fir_decimate_instance_f32 inst; |
| |
| /* Allocate buffers */ |
| state = malloc(STATE_BUF_LEN * sizeof(float32_t)); |
| zassert_not_null(state, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output_buf = malloc(length * sizeof(float32_t)); |
| zassert_not_null(output_buf, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output = output_buf; |
| |
| /* Enumerate samples */ |
| for (sample_index = 0; sample_index < sample_count; sample_index++) { |
| /* Resolve sample configurations */ |
| decim_factor = config[0]; |
| tap_count = config[1]; |
| block_size = config[2]; |
| ref_size = config[3]; |
| |
| /* Initialise instance */ |
| status = arm_fir_decimate_init_f32(&inst, tap_count, |
| decim_factor, coeff, state, |
| block_size); |
| |
| zassert_equal(status, ARM_MATH_SUCCESS, |
| ASSERT_MSG_INCORRECT_COMP_RESULT); |
| |
| /* Run test function */ |
| arm_fir_decimate_f32(&inst, input, output, block_size); |
| |
| /* Increment pointers */ |
| input += block_size; |
| output += ref_size; |
| coeff += tap_count; |
| config += 4; |
| } |
| |
| /* Validate output */ |
| zassert_true( |
| test_snr_error_f32(length, output_buf, ref, SNR_ERROR_THRESH), |
| ASSERT_MSG_SNR_LIMIT_EXCEED); |
| |
| zassert_true( |
| test_rel_error_f32(length, output_buf, ref, REL_ERROR_THRESH), |
| ASSERT_MSG_REL_ERROR_LIMIT_EXCEED); |
| |
| /* Free buffers */ |
| free(state); |
| free(output_buf); |
| } |
| |
| ZTEST(filtering_decim_f32, test_arm_fir_interpolate_f32) |
| { |
| uint32_t filter_length, tap_count; |
| size_t sample_index, block_size, ref_size; |
| size_t sample_count = ARRAY_SIZE(in_config_interp) / 4; |
| size_t length = ARRAY_SIZE(ref_interp); |
| const uint32_t *config = in_config_interp; |
| const float32_t *input = (const float32_t *)in_val_interp; |
| const float32_t *coeff = (const float32_t *)in_coeff_interp; |
| const float32_t *ref = (const float32_t *)ref_interp; |
| float32_t *state, *output_buf, *output; |
| arm_status status; |
| arm_fir_interpolate_instance_f32 inst; |
| |
| /* Allocate buffers */ |
| state = malloc(STATE_BUF_LEN * sizeof(float32_t)); |
| zassert_not_null(state, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output_buf = malloc(length * sizeof(float32_t)); |
| zassert_not_null(output_buf, ASSERT_MSG_BUFFER_ALLOC_FAILED); |
| |
| output = output_buf; |
| |
| /* Enumerate samples */ |
| for (sample_index = 0; sample_index < sample_count; sample_index++) { |
| /* Resolve sample configurations */ |
| filter_length = config[0]; |
| tap_count = config[1]; |
| block_size = config[2]; |
| ref_size = config[3]; |
| |
| /* Initialise instance */ |
| status = arm_fir_interpolate_init_f32(&inst, filter_length, |
| tap_count, coeff, |
| state, block_size); |
| |
| zassert_equal(status, ARM_MATH_SUCCESS, |
| ASSERT_MSG_INCORRECT_COMP_RESULT); |
| |
| /* Run test function */ |
| arm_fir_interpolate_f32(&inst, input, output, block_size); |
| |
| /* Increment pointers */ |
| input += block_size; |
| output += ref_size; |
| coeff += tap_count; |
| config += 4; |
| } |
| |
| /* Validate output */ |
| zassert_true( |
| test_snr_error_f32(length, output_buf, ref, SNR_ERROR_THRESH), |
| ASSERT_MSG_SNR_LIMIT_EXCEED); |
| |
| zassert_true( |
| test_rel_error_f32(length, output_buf, ref, REL_ERROR_THRESH), |
| ASSERT_MSG_REL_ERROR_LIMIT_EXCEED); |
| |
| /* Free buffers */ |
| free(state); |
| free(output_buf); |
| } |
| |
| ZTEST_SUITE(filtering_decim_f32, NULL, NULL, NULL, NULL, NULL); |