d3dx9: Fix D3DXVec3TransformCoord to make tests pass in Windows.

dlls/d3dx9_36/math.c

@@ -1598,20 +1598,12 @@ D3DXVECTOR3* WINAPI D3DXVec3TransformCoord(D3DXVECTOR3 *pout, CONST D3DXVECTOR3
 
     norm = pm->u.m[0][3] * pv->x + pm->u.m[1][3] * pv->y + pm->u.m[2][3] *pv->z + pm->u.m[3][3];
 
-    if ( norm )
-    {
-     CONST D3DXVECTOR3 v = *pv;
-     out.x = (pm->u.m[0][0] * v.x + pm->u.m[1][0] * v.y + pm->u.m[2][0] * v.z + pm->u.m[3][0]) / norm;
-     out.y = (pm->u.m[0][1] * v.x + pm->u.m[1][1] * v.y + pm->u.m[2][1] * v.z + pm->u.m[3][1]) / norm;
-     out.z = (pm->u.m[0][2] * v.x + pm->u.m[1][2] * v.y + pm->u.m[2][2] * v.z + pm->u.m[3][2]) / norm;
-    }
-    else
-    {
-     out.x = 0.0f;
-     out.y = 0.0f;
-     out.z = 0.0f;
-    }
+    out.x = (pm->u.m[0][0] * pv->x + pm->u.m[1][0] * pv->y + pm->u.m[2][0] * pv->z + pm->u.m[3][0]) / norm;
+    out.y = (pm->u.m[0][1] * pv->x + pm->u.m[1][1] * pv->y + pm->u.m[2][1] * pv->z + pm->u.m[3][1]) / norm;
+    out.z = (pm->u.m[0][2] * pv->x + pm->u.m[1][2] * pv->y + pm->u.m[2][2] * pv->z + pm->u.m[3][2]) / norm;
+
     *pout = out;
+
     return pout;
 }
 

dlls/d3dx9_36/tests/math.c

@@ -1115,7 +1115,7 @@ static void D3DXVector2Test(void)
 static void D3DXVector3Test(void)
 {
     D3DVIEWPORT9 viewport;
-    D3DXVECTOR3 expectedvec, gotvec, nul, nulproj, u, v, w, x;
+    D3DXVECTOR3 expectedvec, gotvec, nul, u, v, w, x;
     LPD3DXVECTOR3 funcpointer;
     D3DXVECTOR4 expectedtrans, gottrans;
     D3DXMATRIX mat, projection, view, world;
@@ -1290,11 +1290,6 @@ static void D3DXVector3Test(void)
     expectedvec.x = 70.0f/124.0f; expectedvec.y = 88.0f/124.0f; expectedvec.z = 106.0f/124.0f;
     D3DXVec3TransformCoord(&gotvec,&u,&mat);
     expect_vec3(expectedvec,gotvec);
-    /* Test the nul projected vector */
-    nulproj.x = 1.0f; nulproj.y = -1.0f, nulproj.z = -1.0f;
-    expectedvec.x = 0.0f; expectedvec.y = 0.0f; expectedvec.z = 0.0f;
-    D3DXVec3TransformCoord(&gotvec,&nulproj,&mat);
-    expect_vec3(expectedvec,gotvec);
 
 /*_______________D3DXVec3TransformNormal______________________*/
     expectedvec.x = 57.0f; expectedvec.y = 74.0f; expectedvec.z = 91.0f;