d3dx8: Implement D3XMatrixMultiplyTranspose.

dlls/d3dx8/d3dx8.spec

@@ -22,6 +22,7 @@
 @ stdcall D3DXVec4Transform(ptr ptr ptr)
 @ stdcall D3DXMatrixfDeterminant(ptr)
 @ stdcall D3DXMatrixMultiply(ptr ptr ptr)
+@ stdcall D3DXMatrixMultiplyTranspose(ptr ptr ptr)
 @ stdcall D3DXMatrixTranspose(ptr ptr)
 @ stdcall D3DXMatrixInverse(ptr ptr ptr)
 @ stdcall D3DXMatrixScaling(ptr long long long)

dlls/d3dx8/math.c

@@ -158,6 +158,15 @@ D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, C
     return pout;
 }
 
+D3DXMATRIX* WINAPI D3DXMatrixMultiplyTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2)
+{
+    D3DXMATRIX temp;
+
+    D3DXMatrixMultiply(&temp, pm1, pm2);
+    D3DXMatrixTranspose(pout, &temp);
+    return pout;
+}
+
 D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf)
 {
     D3DXMatrixIdentity(pout);

dlls/d3dx8/tests/math.c

@@ -235,6 +235,14 @@ static void D3DXMatrixTest(void)
     D3DXMatrixMultiply(&gotmat,&mat,&mat2);
     expect_mat(expectedmat,gotmat);
 
+/*____________D3DXMatrixMultiplyTranspose____*/
+    expectedmat.m[0][0] = 73.0f; expectedmat.m[0][1] = 231.0f; expectedmat.m[0][2] = 239.0f; expectedmat.m[0][3] = -164.0f;
+    expectedmat.m[1][0] = 193.0f; expectedmat.m[1][1] = 551.0f; expectedmat.m[1][2] = 523.0f; expectedmat.m[1][3] = -320.0;
+    expectedmat.m[2][0] = -197.0f; expectedmat.m[2][1] = -489.0f; expectedmat.m[2][2] = -400.0f; expectedmat.m[2][3] = 187.0f;
+    expectedmat.m[3][0] = -77.0f; expectedmat.m[3][1] = -169.0f; expectedmat.m[3][2] = -116.0f; expectedmat.m[3][3] = 31.0f;
+    D3DXMatrixMultiplyTranspose(&gotmat,&mat,&mat2);
+    expect_mat(expectedmat,gotmat);
+
 /*____________D3DXMatrixOrthoLH_______________*/
     U(expectedmat).m[0][0] = 0.8f; U(expectedmat).m[0][1] = 0.0f; U(expectedmat).m[0][2] = 0.0f; U(expectedmat).m[0][3] = 0.0f;
     U(expectedmat).m[1][0] = 0.0f; U(expectedmat).m[1][1] = 0.270270f; U(expectedmat).m[1][2] = 0.0f; U(expectedmat).m[1][3] = 0.0f;

include/d3dx8math.h

@@ -264,6 +264,7 @@ D3DXMATRIX* WINAPI D3DXMatrixInverse(D3DXMATRIX *pout, FLOAT *pdeterminant, CONS
 D3DXMATRIX* WINAPI D3DXMatrixLookAtLH(D3DXMATRIX *pout, CONST D3DXVECTOR3 *peye, CONST D3DXVECTOR3 *pat, CONST D3DXVECTOR3 *pup);
 D3DXMATRIX* WINAPI D3DXMatrixLookAtRH(D3DXMATRIX *pout, CONST D3DXVECTOR3 *peye, CONST D3DXVECTOR3 *pat, CONST D3DXVECTOR3 *pup);
 D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2);
+D3DXMATRIX* WINAPI D3DXMatrixMultiplyTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FLOAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterLH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterRH(D3DXMATRIX *pout, FLOAT l, FLOAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf);