mirror of
https://github.com/ZDoom/gzdoom.git
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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
uchar *ScanFill(uchar *cursor){
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unsigned cnt = s->tok - s->bot;
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s->pos += cursor - s->mrk;
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if(cnt){
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if(s->eot){
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unsigned len = s->eot - s->tok;
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memcpy(s->bot, s->tok, len);
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s->eot = &s->bot[len];
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if((len = s->lim - cursor) != 0)
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memcpy(s->eot, cursor, len);
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cursor = s->eot;
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s->lim = &cursor[len];
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} else {
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memcpy(s->bot, s->tok, s->lim - s->tok);
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cursor -= cnt;
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s->lim -= cnt;
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}
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s->tok = s->bot;
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s->ptr -= cnt;
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}
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if((s->top - s->lim) < 512){
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uchar *buf = (uchar*) malloc(((s->lim - s->bot) + 512)*sizeof(uchar));
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memcpy(buf, s->bot, s->lim - s->bot);
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s->tok = buf;
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s->ptr = &buf[s->ptr - s->bot];
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if(s->eot)
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s->eot = &buf[s->eot - s->bot];
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cursor = &buf[cursor - s->bot];
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s->lim = &buf[s->lim - s->bot];
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s->top = &s->lim[512];
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free(s->bot);
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s->bot = buf;
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}
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s->mrk = cursor;
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if(ScanCBIO.file){
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if((cnt = read(ScanCBIO.u.f.fd, (char*) s->lim, 512)) != 512)
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memset(&s->lim[cnt], 0, 512 - cnt);
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s->lim += 512;
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}
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return cursor;
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}
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