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d3dx9: Use float functions in D3DXQuaternionLn().

This commit is contained in:
Rico Schüller 2012-09-27 12:14:18 +02:00 committed by Alexandre Julliard
parent 2c05f0044c
commit e921953374
1 changed files with 9 additions and 9 deletions
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18
dlls/d3dx9_36/math.c
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@ -1305,23 +1305,23 @@ D3DXQUATERNION* WINAPI D3DXQuaternionInverse(D3DXQUATERNION *pout, CONST D3DXQUA
return pout; return pout;
} }
D3DXQUATERNION* WINAPI D3DXQuaternionLn(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq) D3DXQUATERNION * WINAPI D3DXQuaternionLn(D3DXQUATERNION *out, const D3DXQUATERNION *q)
{ {
FLOAT t; FLOAT t;
TRACE("(%p, %p)\n", pout, pq); TRACE("out %p, q %p\n", out, q);
if ( (pq->w >= 1.0f) || (pq->w == -1.0f) ) if ((q->w >= 1.0f) || (q->w == -1.0f))
t = 1.0f; t = 1.0f;
else else
t = acos( pq->w ) / sqrt( 1.0f - pq->w * pq->w ); t = acosf(q->w) / sqrtf(1.0f - q->w * q->w);
pout->x = t * pq->x; out->x = t * q->x;
pout->y = t * pq->y; out->y = t * q->y;
pout->z = t * pq->z; out->z = t * q->z;
pout->w = 0.0f; out->w = 0.0f;
return pout; return out;
} }
D3DXQUATERNION* WINAPI D3DXQuaternionMultiply(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2) D3DXQUATERNION* WINAPI D3DXQuaternionMultiply(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq1, CONST D3DXQUATERNION *pq2)