From e8f887dc184b6ad9953b3522440627c0a4d7736f Mon Sep 17 00:00:00 2001
From: David Adam <David.Adam@math.cnrs.fr>
Date: Tue, 30 Oct 2007 15:16:12 +0100
Subject: [PATCH] d3dx8: Implement D3DXMatrixTranspose.

---
 dlls/d3dx8/d3dx8.spec   |  2 +-
 dlls/d3dx8/math.c       | 14 ++++++++++++++
 dlls/d3dx8/tests/math.c |  8 ++++++++
 include/d3dx8math.h     |  1 +
 4 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/dlls/d3dx8/d3dx8.spec b/dlls/d3dx8/d3dx8.spec
index 808e5093ff1..5a5efeb5f65 100644
--- a/dlls/d3dx8/d3dx8.spec
+++ b/dlls/d3dx8/d3dx8.spec
@@ -22,7 +22,7 @@
 @ stdcall D3DXVec4Transform(ptr ptr ptr)
 @ stdcall D3DXMatrixfDeterminant(ptr)
 @ stdcall D3DXMatrixMultiply(ptr ptr ptr)
-@ stub D3DXMatrixTranspose
+@ stdcall D3DXMatrixTranspose(ptr ptr)
 @ stub D3DXMatrixInverse
 @ stub D3DXMatrixScaling
 @ stub D3DXMatrixTranslation
diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index 3c46581903c..7ce5e21d9a1 100644
--- a/dlls/d3dx8/math.c
+++ b/dlls/d3dx8/math.c
@@ -58,6 +58,20 @@ D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, C
     return pout;
 }
 
+D3DXMATRIX* WINAPI D3DXMatrixTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm)
+{
+    int i,j;
+
+    for (i=0; i<4; i++)
+    {
+     for (j=0; j<4; j++)
+     {
+      pout->m[i][j] = pm->m[j][i];
+     }
+    }
+    return pout;
+}
+
 /*_________________D3DXQUATERNION________________*/
 
 D3DXQUATERNION* WINAPI D3DXQuaternionNormalize(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq)
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index fbfe46d4747..8c35b551374 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/dlls/d3dx8/tests/math.c
@@ -195,6 +195,14 @@ static void D3DXMatrixTest(void)
     expectedmat.m[3][0] = -164.0f; expectedmat.m[3][1] = -320.0f; expectedmat.m[3][2] = 187.0f; expectedmat.m[3][3] = 31.0f;
     D3DXMatrixMultiply(&gotmat,&mat,&mat2);
     expect_mat(expectedmat,gotmat);
+
+/*____________D3DXMatrixTranspose______________*/
+    expectedmat.m[0][0] = 10.0f; expectedmat.m[0][1] = 11.0f; expectedmat.m[0][2] = 19.0f; expectedmat.m[0][3] = 2.0f;
+    expectedmat.m[1][0] = 5.0; expectedmat.m[1][1] = 20.0f; expectedmat.m[1][2] = -21.0f; expectedmat.m[1][3] = 3.0f;
+    expectedmat.m[2][0] = 7.0f; expectedmat.m[2][1] = 16.0f; expectedmat.m[2][2] = 30.f; expectedmat.m[2][3] = -4.0f;
+    expectedmat.m[3][0] = 8.0f; expectedmat.m[3][1] = 33.0f; expectedmat.m[3][2] = 43.0f; expectedmat.m[3][3] = -40.0f;
+    D3DXMatrixTranspose(&gotmat,&mat);
+    expect_mat(expectedmat,gotmat);
 }
 
 static void D3DXPlaneTest(void)
diff --git a/include/d3dx8math.h b/include/d3dx8math.h
index 94a9cfde3de..fda908e94d5 100644
--- a/include/d3dx8math.h
+++ b/include/d3dx8math.h
@@ -60,6 +60,7 @@ typedef struct D3DXCOLOR
 
 FLOAT WINAPI D3DXMatrixfDeterminant(CONST D3DXMATRIX *pm);
 D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *pm1, CONST D3DXMATRIX *pm2);
+D3DXMATRIX* WINAPI D3DXMatrixTranspose(D3DXMATRIX *pout, CONST D3DXMATRIX *pm);
 
 D3DXQUATERNION* WINAPI D3DXQuaternionNormalize(D3DXQUATERNION *pout, CONST D3DXQUATERNION *pq);