barcode.h

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#include <stdint.h>
 
#ifndef BARCODE_H // Include guard.
#define BARCODE_H
 
// Definitions.
// ----------------------------------------------------------------------------
//
 
#define BARCODE_MAX_LINES 9 // End of barcode_definitions group.
 
#ifndef BARCODE_DEBUG_VERBOSE // Verbosity level for debug print.
#define BARCODE_DEBUG_VERBOSE 0
#endif
 
#ifndef NDEBUG
#define PICO_DEBUG_MALLOC 1
 
#define BARCODE_DEBUG_VERBOSE 0
#ifndef DEBUG_PRINT
#define DEBUG_PRINT(...) printf(__VA_ARGS__) // Enable debug print.
#endif
#else
#define DEBUG_PRINT(...) // Disable debug print.
#endif
 
// Type definitions.
// ----------------------------------------------------------------------------
//
 
typedef enum
{
    BARCODE_CHAR_0       = 0b000110100, 
    BARCODE_CHAR_1       = 0b100100001, 
    BARCODE_CHAR_2       = 0b001100001, 
    BARCODE_CHAR_3       = 0b101100000, 
    BARCODE_CHAR_4       = 0b000110001, 
    BARCODE_CHAR_5       = 0b100110000, 
    BARCODE_CHAR_6       = 0b001110000, 
    BARCODE_CHAR_7       = 0b000100101, 
    BARCODE_CHAR_8       = 0b100100100, 
    BARCODE_CHAR_9       = 0b001100100, 
    BARCODE_CHAR_A       = 0b100001001, 
    BARCODE_CHAR_B       = 0b001001001, 
    BARCODE_CHAR_C       = 0b101001000, 
    BARCODE_CHAR_D       = 0b000011001, 
    BARCODE_CHAR_E       = 0b100011000, 
    BARCODE_CHAR_F       = 0b001011000, 
    BARCODE_CHAR_G       = 0b000001101, 
    BARCODE_CHAR_H       = 0b100001100, 
    BARCODE_CHAR_I       = 0b001001100, 
    BARCODE_CHAR_J       = 0b000011100, 
    BARCODE_CHAR_K       = 0b100000011, 
    BARCODE_CHAR_L       = 0b001000011, 
    BARCODE_CHAR_M       = 0b101000010, 
    BARCODE_CHAR_N       = 0b000010011, 
    BARCODE_CHAR_O       = 0b100010010, 
    BARCODE_CHAR_P       = 0b001010010, 
    BARCODE_CHAR_Q       = 0b000000111, 
    BARCODE_CHAR_R       = 0b100000110, 
    BARCODE_CHAR_S       = 0b001000110, 
    BARCODE_CHAR_T       = 0b000010110, 
    BARCODE_CHAR_U       = 0b110000001, 
    BARCODE_CHAR_V       = 0b011000001, 
    BARCODE_CHAR_W       = 0b111000000, 
    BARCODE_CHAR_X       = 0b010010001, 
    BARCODE_CHAR_Y       = 0b110010000, 
    BARCODE_CHAR_Z       = 0b011010000, 
    BARCODE_CHAR_DASH    = 0b010000101, 
    BARCODE_CHAR_PERIOD  = 0b110000100, 
    BARCODE_CHAR_SPACE   = 0b011000100, 
    BARCODE_CHAR_DOLLAR  = 0b010101000, 
    BARCODE_CHAR_SLASH   = 0b010100010, 
    BARCODE_CHAR_PLUS    = 0b010001010, 
    BARCODE_CHAR_PERCENT = 0b000101010, 
    BARCODE_CHAR_ASTERISK
    = 0b010010100 
} barcode_char_t;
 
typedef enum
{
    BARCODE_LINE_NONE        = 0,      
    BARCODE_LINE_BLACK_THIN  = 0b0001, 
    BARCODE_LINE_BLACK_THICK = 0b0011, 
    BARCODE_LINE_WHITE_THIN  = 0b0100, 
    BARCODE_LINE_WHITE_THICK = 0b1100  
} barcode_line_type_t;
 
typedef struct barcode_line_buffer
{
    barcode_line_type_t line_buffer[9]; 
    uint16_t line_buffer_index;         
 
} barcode_line_buffer_t;
 
typedef enum
{
    BARCODE_READ_ERROR    = -1, 
    BARCODE_READ_SUCCESS  = 0,  
    BARCODE_READ_CONTINUE = 1,  
    BARCODE_READ_NO_OP = 2      
} barcode_read_response_t;
 
// Public function prototypes.
// ----------------------------------------------------------------------------
//
 
char           barcode_get_char(barcode_char_t barcode_char);
char          *barcode_line_to_string(barcode_line_type_t line_type);
int8_t         barcode_update_line_buffer(barcode_line_buffer_t *p_line_buffer,
                                          barcode_line_type_t    line_type);
void           barcode_clear_line_buffer(barcode_line_buffer_t *p_line_buffer);
barcode_char_t barcode_decode_barcode_char(
    barcode_line_buffer_t *p_line_buffer);
char *barcode_buffer_to_binary_string(barcode_line_buffer_t *p_line_buffer);
 
#endif // BARCODE_H
 
// End of file driver/irline/barcode.h.