[PATCH] Implement D3DXMatrixOrthoOffCenterLH with a test

[David Adam]

---
 dlls/d3dx8/d3dx8.spec   |    2 +-
 dlls/d3dx8/math.c       |   12 ++++++++++++
 dlls/d3dx8/tests/math.c |    8 ++++++++
 include/d3dx8math.h     |    2 ++
 4 files changed, 23 insertions(+), 1 deletions(-)

diff --git a/dlls/d3dx8/d3dx8.spec b/dlls/d3dx8/d3dx8.spec
index 3e6c092..3d69e20 100644
--- a/dlls/d3dx8/d3dx8.spec
+++ b/dlls/d3dx8/d3dx8.spec
@@ -45,7 +45,7 @@
 @ stdcall D3DXMatrixOrthoRH(ptr long long long long)
 @ stdcall D3DXMatrixOrthoLH(ptr long long long long)
 @ stdcall D3DXMatrixOrthoOffCenterRH(ptr long long long long long long)
-@ stub D3DXMatrixOrthoOffCenterLH
+@ stdcall D3DXMatrixOrthoOffCenterLH(ptr long long long long long long)
 @ stub D3DXMatrixShadow
 @ stub D3DXMatrixReflect
 @ stub D3DXQuaternionToAxisAngle
diff --git a/dlls/d3dx8/math.c b/dlls/d3dx8/math.c
index 666c05a..1f14d5c 100644
--- a/dlls/d3dx8/math.c
+++ b/dlls/d3dx8/math.c
@@ -126,6 +126,18 @@ D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, =
FLOAT w, FLOAT h, FLOAT z
     return pout;
 }
=20
+D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterLH(D3DXMATRIX *pout, FLOAT l, FL=
OAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
+{
+    D3DXMatrixIdentity(pout);
+    pout->m[0][0] =3D 2.0f / (r - l);
+    pout->m[1][1] =3D 2.0f / (t - b);
+    pout->m[2][2] =3D 1.0f / (zf -zn);
+    pout->m[3][0] =3D -1.0f -2.0f *l / (r - l);
+    pout->m[3][1] =3D 1.0f + 2.0f * t / (b - t);
+    pout->m[3][2] =3D zn / (zn -zf);
+    return pout;
+}
+
 D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterRH(D3DXMATRIX *pout, FLOAT l, FL=
OAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf)
 {
     D3DXMatrixIdentity(pout);
diff --git a/dlls/d3dx8/tests/math.c b/dlls/d3dx8/tests/math.c
index 8b2ab5b..c3cef3b 100644
--- a/dlls/d3dx8/tests/math.c
+++ b/dlls/d3dx8/tests/math.c
@@ -230,6 +230,14 @@ static void D3DXMatrixTest(void)
     D3DXMatrixOrthoLH(&gotmat, 2.5f, 7.4f, -3.2f, -9.8f);
     expect_mat(expectedmat,gotmat);
=20
+/*____________D3DXMatrixOrthoOffCenterLH_______________*/
+    expectedmat.m[0][0] =3D 3.636364f; expectedmat.m[0][1] =3D 0.0f; expect=
edmat.m[0][2] =3D 0.0f; expectedmat.m[0][3] =3D 0.0f;
+    expectedmat.m[1][0] =3D 0.0f; expectedmat.m[1][1] =3D 0.180180f; expect=
edmat.m[1][2] =3D 0.0; expectedmat.m[1][3] =3D 0.0f;
+    expectedmat.m[2][0] =3D 0.0f; expectedmat.m[2][1] =3D 0.0f; expectedmat=
.m[2][2] =3D -0.045662f; expectedmat.m[2][3] =3D 0.0f;
+    expectedmat.m[3][0] =3D -1.727272f; expectedmat.m[3][1] =3D -0.567568f;=
 expectedmat.m[3][2] =3D 0.424658f; expectedmat.m[3][3] =3D 1.0f;
+    D3DXMatrixOrthoOffCenterLH(&gotmat, 0.2f, 0.75f, -2.4f, 8.7f, 9.3, -12.=
6);
+    expect_mat(expectedmat,gotmat);
+
 /*____________D3DXMatrixOrthoOffCenterRH_______________*/
     expectedmat.m[0][0] =3D 3.636364f; expectedmat.m[0][1] =3D 0.0f; expect=
edmat.m[0][2] =3D 0.0f; expectedmat.m[0][3] =3D 0.0f;
     expectedmat.m[1][0] =3D 0.0f; expectedmat.m[1][1] =3D 0.180180f; expect=
edmat.m[1][2] =3D 0.0; expectedmat.m[1][3] =3D 0.0f;
diff --git a/include/d3dx8math.h b/include/d3dx8math.h
index ecb6cd5..bd1dc4f 100644
--- a/include/d3dx8math.h
+++ b/include/d3dx8math.h
@@ -63,7 +63,9 @@ D3DXMATRIX* WINAPI D3DXMatrixLookAtLH(D3DXMATRIX *pout, CO=
NST D3DXVECTOR3 *peye,
 D3DXMATRIX* WINAPI D3DXMatrixLookAtRH(D3DXMATRIX *pout, CONST D3DXVECTOR3 *=
peye, CONST D3DXVECTOR3 *pat, CONST D3DXVECTOR3 *pup);
 D3DXMATRIX* WINAPI D3DXMatrixMultiply(D3DXMATRIX *pout, CONST D3DXMATRIX *p=
m1, CONST D3DXMATRIX *pm2);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FL=
OAT zn, FLOAT zf);
+D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterLH(D3DXMATRIX *pout, FLOAT l, FL=
OAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoOffCenterRH(D3DXMATRIX *pout, FLOAT l, FL=
OAT r, FLOAT b, FLOAT t, FLOAT zn, FLOAT zf);
+D3DXMATRIX* WINAPI D3DXMatrixOrthoLH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FL=
OAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixOrthoRH(D3DXMATRIX *pout, FLOAT w, FLOAT h, FL=
OAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixPerspectiveFovLH(D3DXMATRIX *pout, FLOAT fovy,=
 FLOAT aspect, FLOAT zn, FLOAT zf);
 D3DXMATRIX* WINAPI D3DXMatrixPerspectiveFovRH(D3DXMATRIX *pout, FLOAT fovy,=
 FLOAT aspect, FLOAT zn, FLOAT zf);
--=20
1.5.3.2


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