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managed_components/espressif__esp-dsp/modules/dotprod/include/dsps_dotprod.h

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+// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+
+#ifndef _DSPI_DOTPROD_H_
+#define _DSPI_DOTPROD_H_
+
+#include "esp_log.h"
+#include "dsp_err.h"
+
+#include "dsps_dotprod_platform.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+// These functions calculates dotproduct of two vectors.
+
+/**@{*/
+/**
+ * @brief      dot product of two 16 bit vectors
+ * Dot product calculation for two signed 16 bit arrays: *dest += (src1[i] * src2[i]) >> (15-shift); i= [0..N)
+ * The extension (_ansi) use ANSI C and could be compiled and run on any platform.
+ * The extension (_ae32) is optimized for ESP32 chip.
+ *
+ * @param[in] src1  source array 1
+ * @param[in] src2  source array 2
+ * @param dest  destination pointer
+ * @param[in] len   length of input arrays
+ * @param[in] shift shift of the result.
+ * @return
+ *      - ESP_OK on success
+ *      - One of the error codes from DSP library
+ */
+esp_err_t dsps_dotprod_s16_ansi(const int16_t *src1, const int16_t *src2, int16_t *dest, int len, int8_t shift);
+esp_err_t dsps_dotprod_s16_ae32(const int16_t *src1, const int16_t *src2, int16_t *dest, int len, int8_t shift);
+esp_err_t dsps_dotprod_s16_arp4(const int16_t *src1, const int16_t *src2, int16_t *dest, int len, int8_t shift);
+/**@}*/
+
+
+/**@{*/
+/**
+ * @brief      dot product of two float vectors
+ * Dot product calculation for two floating point arrays: *dest += (src1[i] * src2[i]); i= [0..N)
+ * The extension (_ansi) use ANSI C and could be compiled and run on any platform.
+ * The extension (_ae32) is optimized for ESP32 chip.
+ *
+ * @param[in] src1  source array 1
+ * @param[in] src2  source array 2
+ * @param dest  destination pointer
+ * @param[in] len   length of input arrays
+ * @return
+ *      - ESP_OK on success
+ *      - One of the error codes from DSP library
+ */
+esp_err_t dsps_dotprod_f32_ansi(const float *src1, const float *src2, float *dest, int len);
+esp_err_t dsps_dotprod_f32_ae32(const float *src1, const float *src2, float *dest, int len);
+esp_err_t dsps_dotprod_f32_aes3(const float *src1, const float *src2, float *dest, int len);
+esp_err_t dsps_dotprod_f32_arp4(const float *src1, const float *src2, float *dest, int len);
+/**@}*/
+
+/**@{*/
+/**
+ * @brief      dot product of two float vectors with step
+ * Dot product calculation for two floating point arrays: *dest += (src1[i*step1] * src2[i*step2]); i= [0..N)
+ * The extension (_ansi) use ANSI C and could be compiled and run on any platform.
+ * The extension (_ae32) is optimized for ESP32 chip.
+ *
+ * @param[in] src1  source array 1
+ * @param[in] src2  source array 2
+ * @param dest  destination pointer
+ * @param[in] len   length of input arrays
+ * @param[in] step1 step over elements in first array
+ * @param[in] step2 step over elements in second array
+ * @return
+ *      - ESP_OK on success
+ *      - One of the error codes from DSP library
+ */
+esp_err_t dsps_dotprode_f32_ansi(const float *src1, const float *src2, float *dest, int len, int step1, int step2);
+esp_err_t dsps_dotprode_f32_ae32(const float *src1, const float *src2, float *dest, int len, int step1, int step2);
+esp_err_t dsps_dotprode_f32_arp4(const float *src1, const float *src2, float *dest, int len, int step1, int step2);
+/**@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#if CONFIG_DSP_OPTIMIZED
+
+#if (dsps_dotprod_s16_ae32_enabled == 1)
+#define dsps_dotprod_s16 dsps_dotprod_s16_ae32
+#elif (dsps_dotprod_s16_arp4_enabled == 1)
+#define dsps_dotprod_s16 dsps_dotprod_s16_arp4
+#else
+#define dsps_dotprod_s16 dsps_dotprod_s16_ansi
+#endif // dsps_dotprod_s16_ae32_enabled
+
+#if (dsps_dotprod_f32_aes3_enabled == 1)
+#define dsps_dotprod_f32 dsps_dotprod_f32_aes3
+#define dsps_dotprode_f32 dsps_dotprode_f32_ae32
+#elif (dsps_dotprod_f32_arp4_enabled == 1)
+#define dsps_dotprod_f32 dsps_dotprod_f32_arp4
+#define dsps_dotprode_f32 dsps_dotprode_f32_arp4
+#elif (dotprod_f32_ae32_enabled == 1)
+#define dsps_dotprod_f32 dsps_dotprod_f32_ae32
+#define dsps_dotprode_f32 dsps_dotprode_f32_ae32
+#else
+#define dsps_dotprod_f32 dsps_dotprod_f32_ansi
+#define dsps_dotprode_f32 dsps_dotprode_f32_ansi
+#endif // dsps_dotprod_f32_ae32_enabled
+
+#else // CONFIG_DSP_OPTIMIZED
+#define dsps_dotprod_s16 dsps_dotprod_s16_ansi
+#define dsps_dotprod_f32 dsps_dotprod_f32_ansi
+#define dsps_dotprode_f32 dsps_dotprode_f32_ansi
+#endif // CONFIG_DSP_OPTIMIZED
+
+#endif // _DSPI_DOTPROD_H_