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d3dx9: Use float functions in D3DXQuaternionExp().

This commit is contained in:
Rico Schüller 2012-09-27 12:14:49 +02:00 committed by Alexandre Julliard
parent 9a281e5dd2
commit ef65fddaf9
1 changed files with 14 additions and 13 deletions
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27
dlls/d3dx9_36/math.c
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@ -1263,28 +1263,29 @@ D3DXQUATERNION* WINAPI D3DXQuaternionBaryCentric(D3DXQUATERNION *pout, CONST D3D
return pout;
}
D3DXQUATERNION* WINAPI D3DXQuaternionExp(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
D3DXQUATERNION * WINAPI D3DXQuaternionExp(D3DXQUATERNION *out, const D3DXQUATERNION *q)
{
FLOAT norm;
TRACE("(%p, %p)\n", pout, pq);
TRACE("out %p, q %p\n", out, q);
norm = sqrt(pq->x * pq->x + pq->y * pq->y + pq->z * pq->z);
if (norm )
norm = sqrtf(q->x * q->x + q->y * q->y + q->z * q->z);
if (norm)
{
pout->x = sin(norm) * pq->x / norm;
pout->y = sin(norm) * pq->y / norm;
pout->z = sin(norm) * pq->z / norm;
pout->w = cos(norm);
out->x = sinf(norm) * q->x / norm;
out->y = sinf(norm) * q->y / norm;
out->z = sinf(norm) * q->z / norm;
out->w = cosf(norm);
}
else
{
pout->x = 0.0f;
pout->y = 0.0f;
pout->z = 0.0f;
pout->w = 1.0f;
out->x = 0.0f;
out->y = 0.0f;
out->z = 0.0f;
out->w = 1.0f;
}
return pout;
return out;
}
D3DXQUATERNION* WINAPI D3DXQuaternionInverse(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)