d3dx8: Implement D3DXPlaneTransform.

dlls/d3dx8/d3dx8.spec

@@ -65,7 +65,7 @@
 @ stdcall D3DXPlaneIntersectLine(ptr ptr ptr ptr)
 @ stdcall D3DXPlaneFromPointNormal(ptr ptr ptr)
 @ stdcall D3DXPlaneFromPoints(ptr ptr ptr ptr)
-@ stub D3DXPlaneTransform
+@ stdcall D3DXPlaneTransform(ptr ptr ptr)
 @ stub D3DXColorAdjustSaturation
 @ stub D3DXColorAdjustContrast
 @ stub D3DXCreateMatrixStack

dlls/d3dx8/math.c

@@ -547,6 +547,15 @@ D3DXPLANE* WINAPI D3DXPlaneNormalize(D3DXPLANE *pout, CONST D3DXPLANE *pp)
     return pout;
 }
 
+D3DXPLANE* WINAPI D3DXPlaneTransform(D3DXPLANE *pout, CONST D3DXPLANE *pplane, CONST D3DXMATRIX *pm)
+{
+     pout->a = pm->u.m[0][0] * pplane->a + pm->u.m[1][0] * pplane->b + pm->u.m[2][0] * pplane->c + pm->u.m[3][0] * pplane->d;
+     pout->b = pm->u.m[0][1] * pplane->a + pm->u.m[1][1] * pplane->b + pm->u.m[2][1] * pplane->c + pm->u.m[3][1] * pplane->d;
+     pout->c = pm->u.m[0][2] * pplane->a + pm->u.m[1][2] * pplane->b + pm->u.m[2][2] * pplane->c + pm->u.m[3][2] * pplane->d;
+     pout->d = pm->u.m[0][3] * pplane->a + pm->u.m[1][3] * pplane->b + pm->u.m[2][3] * pplane->c + pm->u.m[3][3] * pplane->d;
+    return pout;
+}
+
 /*_________________D3DXQUATERNION________________*/
 
 D3DXQUATERNION* WINAPI D3DXQuaternionNormalize(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)

dlls/d3dx8/tests/math.c

@@ -436,12 +436,21 @@ static void D3DXMatrixTest(void)
 
 static void D3DXPlaneTest(void)
 {
+
+    D3DXMATRIX mat;
     D3DXPLANE expectedplane, gotplane, nulplane, plane;
     D3DXVECTOR3 expectedvec, gotvec, vec1, vec2, vec3;
     LPD3DXVECTOR3 funcpointer;
     D3DXVECTOR4 vec;
     FLOAT expected, got;
 
+    U(mat).m[0][1] = 5.0f; U(mat).m[0][2] = 7.0f; U(mat).m[0][3] = 8.0f;
+    U(mat).m[1][0] = 11.0f; U(mat).m[1][2] = 16.0f; U(mat).m[1][3] = 33.0f;
+    U(mat).m[2][0] = 19.0f; U(mat).m[2][1] = -21.0f; U(mat).m[2][3] = 43.0f;
+    U(mat).m[3][0] = 2.0f; U(mat).m[3][1] = 3.0f; U(mat).m[3][2] = -4.0f;
+    U(mat).m[0][0] = 10.0f; U(mat).m[1][1] = 20.0f; U(mat).m[2][2] = 30.0f;
+    U(mat).m[3][3] = -40.0f;
+
     plane.a = -3.0f; plane.b = -1.0f; plane.c = 4.0f; plane.d = 7.0f;
 
     vec.x = 2.0f; vec.y = 5.0f; vec.z = -6.0f; vec.w = 11.0f;
@@ -524,6 +533,11 @@ static void D3DXPlaneTest(void)
     expectedplane.a = 0.0f; expectedplane.b = 0.0f; expectedplane.c = 0.0f; expectedplane.d = 0.0f;
     D3DXPlaneNormalize(&gotplane, &nulplane);
     expect_plane(expectedplane, gotplane);
+
+/*_______________D3DXPlaneTransform____________*/
+    expectedplane.a = 49.0f; expectedplane.b = -98.0f; expectedplane.c = 55.0f; expectedplane.d = -165.0f;
+    D3DXPlaneTransform(&gotplane,&plane,&mat);
+    expect_plane(expectedplane, gotplane);
 }
 
 static void D3X8QuaternionTest(void)

include/d3dx8math.h

@@ -297,6 +297,7 @@ D3DXPLANE* WINAPI D3DXPlaneFromPointNormal(D3DXPLANE *pout, CONST D3DXVECTOR3 *p
 D3DXPLANE* WINAPI D3DXPlaneFromPoints(D3DXPLANE *pout, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2, CONST D3DXVECTOR3 *pv3);
 D3DXVECTOR3* WINAPI D3DXPlaneIntersectLine(D3DXVECTOR3 *pout, CONST D3DXPLANE *pp, CONST D3DXVECTOR3 *pv1, CONST D3DXVECTOR3 *pv2);
 D3DXPLANE* WINAPI D3DXPlaneNormalize(D3DXPLANE *pout, CONST D3DXPLANE *pp);
+D3DXPLANE* WINAPI D3DXPlaneTransform(D3DXPLANE *pout, CONST D3DXPLANE *pplane, CONST D3DXMATRIX *pm);
 
 D3DXQUATERNION* WINAPI D3DXQuaternionNormalize(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq);