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- [EMU] GTE PGXP NCLIP improvement

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This commit is contained in:
Ilya Shurumov 2020-05-23 11:43:40 +06:00
parent cfe66fa34a
commit f8b9c3443c
1 changed files with 23 additions and 1 deletions
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24
src_rebuild/EMULATOR/LIBGTE.C
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@ -592,7 +592,29 @@ int docop2(int op) {
GTELOG("%08x NCLIP", op);
#endif
MAC0 = int(F((long long)(SX0 * SY1) + (SX1 * SY2) + (SX2 * SY0) - (SX0 * SY2) - (SX1 * SY0) - (SX2 * SY1)));
#ifdef PGXP
{
float fSX0 = g_FP_SXYZ0.x;
float fSY0 = g_FP_SXYZ0.y;
float fSX1 = g_FP_SXYZ1.x;
float fSY1 = g_FP_SXYZ1.y;
float fSX2 = g_FP_SXYZ2.x;
float fSY2 = g_FP_SXYZ2.y;
float nclip = (fSX0 * fSY1) + (fSX1 * fSY2) + (fSX2 * fSY0) - (fSX0 * fSY2) - (fSX1 * fSY0) - (fSX2 * fSY1);
float absNclip = fabs(nclip);
if ((0.1f < absNclip) && (absNclip < 1.0f))
nclip += (nclip < 0.0f) ? -1.0f : 1.0f;
MAC0 = nclip;
}
#else
MAC0 = int(F((long long)(SX0 * SY1) + (SX1 * SY2) + (SX2 * SY0) - (SX0 * SY2) - (SX1 * SY0) - (SX2 * SY1)));
#endif
return 1;
case 0x0c: