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d3dx8: Implement D3DX*Vec4Cross.

This commit is contained in:
David Adam 2007-10-27 14:23:25 +02:00 committed by Alexandre Julliard
parent cc22eac10e
commit 0af358b52b
4 changed files with 16 additions and 1 deletions
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2
dlls/d3dx8/d3dx8.spec
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@ -14,7 +14,7 @@
@ stdcall D3DXVec3TransformNormal(ptr ptr ptr)
@ stub D3DXVec3Project
@ stub D3DXVec3Unproject
@ stub D3DXVec4Cross
@ stdcall D3DXVec4Cross(ptr ptr ptr)
@ stdcall D3DXVec4Normalize(ptr ptr)
@ stdcall D3DXVec4Hermite(ptr ptr ptr ptr ptr long)
@ stdcall D3DXVec4CatmullRom(ptr ptr ptr ptr long)

9
dlls/d3dx8/math.c
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@ -246,6 +246,15 @@ D3DXVECTOR4* WINAPI D3DXVec4CatmullRom(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv0
return pout;
}
D3DXVECTOR4* WINAPI D3DXVec4Cross(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3)
{
pout->x = pv1->y * (pv2->z * pv3->w - pv3->z * pv2->w) - pv1->z * (pv2->y * pv3->w - pv3->y * pv2->w) + pv1->w * (pv2->y * pv3->z - pv2->z *pv3->y);
pout->y = -(pv1->x * (pv2->z * pv3->w - pv3->z * pv2->w) - pv1->z * (pv2->x * pv3->w - pv3->x * pv2->w) + pv1->w * (pv2->x * pv3->z - pv3->x * pv2->z));
pout->z = pv1->x * (pv2->y * pv3->w - pv3->y * pv2->w) - pv1->y * (pv2->x *pv3->w - pv3->x * pv2->w) + pv1->w * (pv2->x * pv3->y - pv3->x * pv2->y);
pout->w = -(pv1->x * (pv2->y * pv3->z - pv3->y * pv2->z) - pv1->y * (pv2->x * pv3->z - pv3->x *pv2->z) + pv1->z * (pv2->x * pv3->y - pv3->x * pv2->y));
return pout;
}
D3DXVECTOR4* WINAPI D3DXVec4Hermite(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pt1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pt2, FLOAT s)
{
FLOAT h1, h2, h3, h4;

5
dlls/d3dx8/tests/math.c
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@ -650,6 +650,11 @@ static void D3X8Vector4Test(void)
D3DXVec4CatmullRom(&gotvec,&u,&v,&w,&x,scale);
expect_vec4(expectedvec,gotvec);
/*_______________D3DXVec4Cross_________________________*/
expectedvec.x = 390.0f; expectedvec.y = -393.0f; expectedvec.z = -316.0f; expectedvec.w = 166.0f;
D3DXVec4Cross(&gotvec,&u,&v,&w);
expect_vec4(expectedvec,gotvec);
/*_______________D3DXVec4Dot__________________________*/
expected = 55.0f;
got = D3DXVec4Dot(&u,&v);

1
include/d3dx8math.h
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@ -78,6 +78,7 @@ D3DXVECTOR3* WINAPI D3DXVec3TransformNormal(D3DXVECTOR3 *pout, CONST D3DXVECTOR3
D3DXVECTOR4* WINAPI D3DXVec4BaryCentric(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3, FLOAT f, FLOAT g);
D3DXVECTOR4* WINAPI D3DXVec4CatmullRom(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv0, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3, FLOAT s);
D3DXVECTOR4* WINAPI D3DXVec4Cross(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pv3);
D3DXVECTOR4* WINAPI D3DXVec4Hermite(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv1, CONST D3DXVECTOR4 *pt1, CONST D3DXVECTOR4 *pv2, CONST D3DXVECTOR4 *pt2, FLOAT s);
D3DXVECTOR4* WINAPI D3DXVec4Normalize(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv);
D3DXVECTOR4* WINAPI D3DXVec4Transform(D3DXVECTOR4 *pout, CONST D3DXVECTOR4 *pv, CONST D3DXMATRIX *pm);