37 lines
801 B
C
37 lines
801 B
C
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#include "buffer.h"
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#include <stdio.h>
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Buffer createBuffer(FILE* file) {
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Buffer buffer = {
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.data = 0,
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.used_bits = 0,
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.linked_file = file
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};
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return buffer;
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}
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void flushBuffer(Buffer* buffer) {
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// TODO: gérer les erreurs d'écriture
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// Alignement des données à gauche de l'octet
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buffer->data <<= 8 - buffer->used_bits;
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fputc(buffer->data, buffer->linked_file);
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buffer->data = 0;
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buffer->used_bits = 0;
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}
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void pushToBuffer(int bit, Buffer* buffer) {
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// Si le tampon déborde, écriture dans le fichier
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if (buffer->used_bits == 8) {
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flushBuffer(buffer);
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}
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// Insertion de chaque bit de l'étiquette dans
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// le tampon de sortie
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buffer->data <<= 1;
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buffer->data |= bit;
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buffer->used_bits += 1;
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}
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