From 3231c01c42acc4d1ccffb1712ec43f2236f8d6fd Mon Sep 17 00:00:00 2001
From: David Adam <David.Adam@math.cnrs.fr>
Date: Sun, 11 Nov 2007 17:24:43 +0100
Subject: [PATCH] d3dx8: Implement D3XMatrixMultiplyTranspose.

---
 dlls/d3dx8/d3dx8.spec   | 1 +
 dlls/d3dx8/math.c       | 9 +++++++++
 dlls/d3dx8/tests/math.c | 8 ++++++++
 include/d3dx8math.h     | 1 +
 4 files changed, 19 insertions(+)

diff --git a/dlls/d3dx8/d3dx8.spec b/dlls/d3dx8/d3dx8.spec
index 391da82682e..4b29b615927 100644
--- a/dlls/d3dx8/d3dx8.spec
+++ b/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)
diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index 6179dde1316..64688677a6f 100644
--- a/dlls/d3dx8/math.c
+++ b/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);
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index a796c6e7b4d..6a20a305469 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/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;
diff --git a/include/d3dx8math.h b/include/d3dx8math.h
index 2d236df294a..e2cfc7528c0 100644
--- a/include/d3dx8math.h
+++ b/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);
-- 
2.11.4.GIT