68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
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/**
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* @file furi-hal-compress.h
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* LZSS based compression HAL API
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*/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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/** Defines encoder and decoder window size */
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#define FURI_HAL_COMPRESS_EXP_BUFF_SIZE_LOG (8)
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/** Defines encoder and decoder lookahead buffer size */
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#define FURI_HAL_COMPRESS_LOOKAHEAD_BUFF_SIZE_LOG (4)
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/** FuriHalCompress control structure */
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typedef struct FuriHalCompress FuriHalCompress;
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/** Initialize icon decoder
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*/
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void furi_hal_compress_icon_init();
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/** Icon decoder
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*
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* @param icon_data pointer to icon data
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* @param decoded_buff pointer to decoded buffer
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*/
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void furi_hal_compress_icon_decode(const uint8_t* icon_data, uint8_t** decoded_buff);
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/** Allocate encoder and decoder
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*
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* @param compress_buff_size size of decoder and encoder buffer to allocate
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*
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* @return FuriHalCompress instance
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*/
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FuriHalCompress* furi_hal_compress_alloc(uint16_t compress_buff_size);
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/** Free encoder and decoder
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*
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* @param compress FuriHalCompress instance
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*/
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void furi_hal_compress_free(FuriHalCompress* compress);
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/** Encode data
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*
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* @param compress FuriHalCompress instance
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* @param data_in pointer to input data
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* @param data_in_size size of input data
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* @param data_out maximum size of output data
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* @param data_res_size pointer to result output data size
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*
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* @return true on success
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*/
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bool furi_hal_compress_encode(FuriHalCompress* compress, uint8_t* data_in, size_t data_in_size, uint8_t* data_out, size_t data_out_size, size_t* data_res_size);
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/** Decode data
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*
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* @param compress FuriHalCompress instance
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* @param data_in pointer to input data
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* @param data_in_size size of input data
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* @param data_out maximum size of output data
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* @param data_res_size pointer to result output data size
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*
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* @return true on success
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*/
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bool furi_hal_compress_decode(FuriHalCompress* compress, uint8_t* data_in, size_t data_in_size, uint8_t* data_out, size_t data_out_size, size_t* data_res_size);
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