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30 lines
595 B
C
30 lines
595 B
C
// code from xanim sources...
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// (I hope that not hurt copyright :o)
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#define xaLONG long
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#define xaULONG unsigned long
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#define xaBYTE char
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#define xaUBYTE unsigned char
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xaULONG long xa_alaw_2_sign[256];
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void Gen_aLaw_2_Signed()
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{ xaULONG i;
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for(i=0;i<256;i++)
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{ xaUBYTE data = (xaUBYTE)(i);
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xaLONG d, t, seg;
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data ^= 0x55;
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t = (data & 0xf) << 4;
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seg = (data & 0x70) >> 4;
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if (seg == 0) t += 8;
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else if (seg == 1) t += 0x108;
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else { t += 108; t <<= seg - 1; }
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d = (data & 0x80)?(t):(-t);
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xa_alaw_2_sign[i] = (xaULONG)((xaULONG)(d) & 0xffff);
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}
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}
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